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<head><meta charset="utf-8"><title>Portable SIMD project group compiler-team#321 · t-compiler/major changes · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/233931-t-compiler/major-changes/index.html">t-compiler/major changes</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/233931-t-compiler/major-changes/topic/Portable.20SIMD.20project.20group.20compiler-team.23321.html">Portable SIMD project group compiler-team#321</a></h3>

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<a name="201958158"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/233931-t-compiler/major%20changes/topic/Portable%20SIMD%20project%20group%20compiler-team%23321/near/201958158" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> triagebot <a href="https://rust-lang.github.io/zulip_archive/stream/233931-t-compiler/major-changes/topic/Portable.20SIMD.20project.20group.20compiler-team.23321.html#201958158">(Jun 25 2020 at 11:44)</a>:</h4>
<p>A new proposal has been announced: <a href="https://github.com/rust-lang/compiler-team/issues/321">#321</a>. It will be brought up at the next meeting.</p>



<a name="201961183"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/233931-t-compiler/major%20changes/topic/Portable%20SIMD%20project%20group%20compiler-team%23321/near/201961183" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> bjorn3 <a href="https://rust-lang.github.io/zulip_archive/stream/233931-t-compiler/major-changes/topic/Portable.20SIMD.20project.20group.20compiler-team.23321.html#201961183">(Jun 25 2020 at 12:20)</a>:</h4>
<p>Regarding endianness with transmute, this is no different from transmuting between <code>u32</code> and <code>[u8; 4]</code>.</p>



<a name="201987350"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/233931-t-compiler/major%20changes/topic/Portable%20SIMD%20project%20group%20compiler-team%23321/near/201987350" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Henri Sivonen <a href="https://rust-lang.github.io/zulip_archive/stream/233931-t-compiler/major-changes/topic/Portable.20SIMD.20project.20group.20compiler-team.23321.html#201987350">(Jun 25 2020 at 15:48)</a>:</h4>
<p>Yes, though with SIMD, one would like to have a way to bitcast a <code>u8x16</code> to <code>u16x8</code> without writing an <code>unsafe</code> transmute, so the endianness issue would be more front and center than with <code>unsafe</code> transmutes.</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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